What is SIC code 3678?

SIC code 3678 represents the Electronic Connectors industry. SIC (Standard Industrial Classification) is a four-digit code system used by the U.S. SEC to classify companies by their primary line of business. There are 4 public companies registered under this code in the SEC EDGAR database.

What is the largest Electronic Connectors company by revenue?

AMPHENOL CORP /DE/ is the largest company in the Electronic Connectors industry by revenue, reporting $23.1B in FY2025 according to its SEC EDGAR 10-K annual filing. Companies in this industry with available XBRL data collectively reported $23.4B in revenue across their most recent fiscal years.

Electronic Connectors

Q: How many public companies are in the Electronic Connectors industry?

There are 4 SEC-registered public companies classified under SIC code 3678 (Electronic Connectors) in the SEC EDGAR database.

SIC 3678 · 4 companies

This page lists all SEC-registered public companies classified under SIC code 3678 (Electronic Connectors). SIC — Standard Industrial Classification — is a four-digit code system used by the SEC to group companies by their primary line of business. You can also view financial rankings for this industry.

The Electronic Connectors industry includes 4 SEC-registered public companies. The largest by revenue is AMPHENOL CORP /DE/, which reported $23.1B in FY2025. Companies in this industry with available XBRL data collectively reported $23.4B in revenue across their most recent fiscal years.

Company	Ticker	Exchange	State	Filings
AMPHENOL CORP /DE/	APH	NYSE	DE	1,000
IEH Corp	IEHC	OTC	NY	406
METHODE ELECTRONICS INC	MEI	NYSE	DE	1,000
R F INDUSTRIES LTD	RFIL	NASDAQ	NV	877